AI has become part of how most software gets written, and Stalwart is no exception. But “we use AI” has become such a vague statement that it says almost nothing. So this post is the specific version: where AI measurably helps us, where we deliberately keep it out of the codebase, and why a server designed to run in large clusters still gets its architecture written by hand.
We are happy to announce the release of Stalwart Mail Server v0.10.3, which introduces support for AI models —a powerful new feature now available to Enterprise Edition users as well as our GitHub and OpenCollective sponsors. With this feature, Stalwart Mail Server can be integrated with both self-hosted and cloud-based Large Language Models (LLMs), bringing advanced email processing capabilities like never before.
This integration allows you to use AI models for a variety of tasks, including enhanced spam filtering, threat detection, and intelligent email classification. Whether you choose to host your own models with LocalAI or leverage cloud-based services like OpenAI or Anthropic, this release provides the flexibility to incorporate cutting-edge AI into your email infrastructure.
